I absolutely agree Pace that a certified BRS system changes the picture.
But, having had significant sight of the installation of those systems, I'd say that the microlight manufacturers have also been very rigorous in those installations, albeit not quite to the level of the certified system on the Cirrus.
It's entirely reasonable that we see more of these, and that they change the way we see some flight safety and operational issues. But, you shouldn't underestimate the huge cost of reaching the level of certification that Cirrus have. They may not have had the cost of spin testing, but they hardly got off cost free.
G